24-30 July 2016
Highfield Campus, University of Southampton
Europe/London timezone

Renormalisation of the scalar energy-momentum tensor with the Wilson flow

27 Jul 2016, 09:00
20m
Building B2a Room 2077 (Highfield Campus, University of Southampton)

Building B2a Room 2077

Highfield Campus, University of Southampton

Talk Theoretical Developments Theoretical Developments

Speaker

Susanne Ehret (University of Edinburgh)

Description

The Wilson flow is a promising tool to study strongly coupled theories. Its remarkable renormalisation properties allow for a meaningful formulation of the energy-momentum tensor on the lattice. The non-perturbative computation of the latter can in turn be used to study the scaling behaviour of quantum field theories. We extent recent studies on the renormalisation of the energy-momentum tensor in 4-dimensional gauge theory to the case of a 3-dimensional scalar theory to investigate its intrinsic structure and numerical feasibility on a more basic level. In this talk, we introduce the Wilson flow for scalar theory, discuss Ward identities, and present our results for the renormalisation constants of the scalar energy-momentum tensor.

Primary authors

Dr Antonin Portelli (The University of Edinburgh) Dr Antonio Rago (Plymouth University) Mr Francesco Capponi (Plymouth University) Prof. Luigi Del Debbio (Edinburgh) Dr Roberto Pellegrini (The University of Edinburgh) Susanne Ehret (University of Edinburgh)

Presentation Materials